Vania



(No ModeL) 1). EVANS & A. w. ADAMS. PORTABLE BOTTOM P-OR 00KB OVENS.

No. 427,307. PatentedMaJy 6, 1890.

A TTOHNE YS UNITE STATES DAVID EVANS AND ALBERT IVILLIAM. ADAMS, OE PITTSBURG, PENNSYL- PATENT OFFICE.

VAN IA.

PORTABLE BOTTOM FOR COK E-OVENS.

SPECIFICATION forming part of Letters Patent No. 427,307, dated May 6, 1890. Application filed December 19, 1889. Serial No. 334,306; (No model.)

To all whom, it may concern:

Be it known that we, DAVID EVANS and AL- BERT WILLIAM ADAMS, both of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and Improved Portable Bottom for Ooke-Ovens, of which the following is a full, clear, and exact description.

This invention relates to coke-ovens of the class illustrated, described, and claimed in Letters Patent of the United States, No. 386,427, granted to us on the 17th day of July, A. D. 1888, the object of the present invention being to provide a bottom which will permit the surplus water thrown upon the coke to cool it to flow off, and to facilitate the raisin g and lowering of said bottom.

The invention consists of the particular construction and'combiuation of parts, all as hereinafter fully described, and pointed out in the claim.

Reference is to be had to the accompanying drawing, which is a central sectional elevation of an oven embodying our invention.

In the drawing, represents an oven prefcrably of the old beehive form; but any other desired form might be employed. This oven 10 is formed with a shoulder or flange 11,

against which afiange'12, formed upon the concave bottom 13 abuts, when such bottom is in the position indicated by dotted lines in the drawingthat is, when the-bottom is in operative position.

Beneath the bottom 13 we arrange a cylinder 1%, within which there is mounted a piston or plunger 15, having a head 16, upon which the oven-bottom 13 rests, this head 16 being forined with an upwardly-extending projection 17, that is preferably in the form of a frustum of a cone, such projection enterin g a correspondingly-shaped aperture that is formed in the center of the oven-bottom.

By constructing the bottom with a central aperture and the piston-head with a projection fitting in said aperture the bottom is centered upon the piston-head, and the said aperture also serves to allowthe surplus water thrown upon the coke to cool it after the bottom has been lowered and removed from the oven to flow off through said aperture, thereby leaving the said bottom clean and dry ready for a new charge.

At either-side of the pit A, within which the cylinder 14: is arranged, we mount rails 18, upon which there may be run a car that is adapted to receive the bottom 13, the arrangement being such that after the charge has been coked the bottom may be lowered upon the car and moved bodily from the oven.

Any proper hydraulic pump may be eniployed to force a liquid within the cylinder beneath the piston or plunger 15.

Having thus described our invention, we claim as new and desire to secure by Letters Patent-- In a coking-oven, the combination, with the piston of a hydraulic ram provided with a head having an upwardly-extending conical projection, of a concave bottom provided with a central conical aperture adapted to receive the projection of the piston to support and center the bottom on the piston, and also to serve as a means for allowing the water thrown upon the coke to cool it after the bottom has been removed from the oven to flow off and leave the bottom clean and dry, substantially as described.

DAVID EVANS. ALBERT IVILLIAM ADAMS.

Witnesses:

H. B. DEMMLER, JAMEs A. TOMB. 

